求助:关于80C51单片机简易计算器设计的程序,要求是汇编语言。谢谢哈...答:ORG 0000H START:MOV 78H,#0 ;初始化:78H放0的段码,其余放熄灭码 MOV 79H,#10 MOV 7AH,#10 MOV 7BH,#10 MOV 7CH,#10 MOV 7DH,#10 MOV R5, #0 ;R5是按键次数,初始置0 MOV 30H,#0 ;30H是功能键存放单元,置为0 MOV 40H,#0 ;40H单元...
8051F310单片机,74164驱动数码管的程序,用汇编写,谁可以告诉我啊!急用...答:MOV 33H,#01H MOV 34H,#06H MOV 35H,#03H MOV 36H,#02H ACALL D0 JMP $-2 D0: MOV R0,#31H MOV R2,#11111110B MOV DPTR,#TAB D1: ORL P1,#00111111B MOV A,@R0 MOVC A,@A+DPTR MOV R3,#8 D2: RLC A MOV P3.2,C SE...